Home / 312,325,529.06-431,009,270.26-173,105,278.82

Finding the Fourth Proportional to 312,325,529.06, 431,009,270.26 and 173,105,278.82

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Solution

The fourth proportional to 312,325,529.06, 431,009,270.26 and 173,105,278.82 is: 238,885,307.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    312,325,529.06 : 431,009,270.26 = 173,105,278.82 : x
  2. Step 2: Convert to fraction form
    312,325,529.06/431,009,270.26 = 173,105,278.82/x
  3. Step 3: Cross multiply
    312,325,529.06x = 431,009,270.26 × 173,105,278.82
  4. Step 4: Simplify right side
    312,325,529.06x = 74,609,979,902,362,032
  5. Step 5: Solve for x
    x = 74,609,979,902,362,032/312,325,529.06
  6. Step 6: Final answer
    x = 238,885,307.03

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.